
axis([-1,1,-1,1]);
data = my_bot;
this.robot_body = data.vertices;
x  = 0;
y  = 0;
th = 0;
rotation_matrix = [
    cos(th) -sin(th) x;
    sin(th)  cos(th) y;
    0 0 1];
transformed = this.robot_body*rotation_matrix';
this.robot_handle{1} = patch(...
'Vertices', transformed(:, 1:2), ...
'Faces', data.faces, ...
'FaceColor', 'flat', ...
'FaceVertexCData', data.colors, ...
'EdgeColor','none');

